1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Georgia [21]
3 years ago
14

Show how to convert the temperature 84.7° C to Kelvin. Please include all steps and label the final

Chemistry
2 answers:
aleksklad [387]3 years ago
7 0

Answer:

184.46

Explanation:

(84.7°c x 9/5)+32=184.46 °F

BaLLatris [955]3 years ago
3 0
K=273.15+C
So that’d be 357.85K (84.7+273.15)
You might be interested in
#1: How are the elements arranged in the modern periodic table?
Alekssandra [29.7K]

1- The correct answer is C :


the elements arranged in the modern periodic table by increasing atomic number.


The explanation:


-The elements in the periodic table are arranged to increase the atomic number. All of these elements display several other trends and we can use the periodic law and table formation to predict their chemical, physical, and atomic properties.


2- The correct answer is C:


strontium, magnesium, calcium, beryllium are the elements which have similar properties.


The explanation:

-strontium, magnesium, calcium, beryllium, these belong to the alkaline earth metal group.

Because the outer electron structure in all of these elements is similar, they all have somewhat similar chemical and physical properties .

3- The correct answer is A :


Potassium


The explanation:


-The elements potassium and sodium have similar chemical properties because they have the same number of valence electrons and form +1 ions.



4- The correct answer is D


The explanation:


Mendeleev didn't include helium, neon, and argon in his periodic table because these elements had not yet been discovered.


5- The correct answer is B:


The periodic law describes trends seen across periods within the periodic table.


The explanation:


When the chemical elements are arranged, there is a pattern called the “periodic law” in their properties, in which elements in the same column (group) have similar properties


4 0
3 years ago
Read 2 more answers
If 190dm of hydrogen gas collected at 20°c and 760mmHg .Calculate it's volume at stp (standard pressure=760mmHg
Andrei [34K]

Answer:

177.1 L

Explanation:

The excersise can be solved, by the Ideal Gases Law.

P . V = n . R . T

In first step we need to determine the moles of gas:

We convert T° from, C° to K → 20°C + 273 = 293K

We convert P from mmHg to atm → 760 mmHg = 1atm

1Dm³ = 1L → 190L

We replace: 190 L . 1 atm = n . 0.082 . 293K

(190L.atm) / 0.082 . 293K = 7.91 moles.

We replace equation at STP conditions (1 atm and 273K)

V = (n . R .T) / P

V = (7.91 mol . 0.082 . 273K) / 1atm = 177.1 L

We can also make a rule of three:

At STP conditions 1 mol of gas occupies 22.4L

Then, 7.91 moles will be contained at (7.91 . 22.4) /1 = 177.1L

3 0
3 years ago
39. Period is the force of attraction between objects resulting in objects pulling towards each
storchak [24]

Answer:

True

Explanation:

if there was nothing to avoid of objects pulling towards one another many results may happen

8 0
3 years ago
How many half-lives are required for three-fourths of the nuclei of an isotope in a sample to decay?
prisoha [69]
2 half lives are required.
5 0
3 years ago
What mass of helium is in a 2.00 L balloon at STP? pls help me lol
sertanlavr [38]

Once upon a time there was a lovely

                        princess. But she had an enchantment

                        upon her of a fearful sort which could

                        only be broken by love's first kiss.

                        She was locked away in a castle guarded

                        by a terrible fire-breathing dragon.

                        Many brave knights had attempted to

                        free her from this dreadful prison,

                        but non prevailed. She waited in the

                        dragon's keep in the highest room of

                        the tallest tower for her true love

                        and true love's first kiss. (laughs)

                        Like that's ever gonna happen. What

                        a load of - (toilet flush)

              Allstar - by Smashmouth begins to play. Shrek goes about his

              day. While in a nearby town, the villagers get together to go

              after the ogre.

3 0
2 years ago
Other questions:
  • Acetic acid is a weak acid with a pKa of 4.76. What is the concentration of acetic acid in a buffer solution of 0.2M at pH 4.9.
    5·1 answer
  • If you are given the number of molecules in an unidentified chemical compound can you calculate the number of moles in this samp
    5·2 answers
  • Consider the following equilibrium system: 3O2(g)  2O3(g); Keq = 1 Which equation compares the concentration of oxygen and ozone
    11·2 answers
  • A pot of water is heated on a gas-flame stove and begins to boil. Which two
    14·2 answers
  • Compared to other minerals, a mineral that is ranked higher on the mohs scale will be
    15·1 answer
  • An electron has a charge identical to that of
    7·1 answer
  • I searched it up but it keeps saying chemical energy, but in the option doesn’t have it...I’m torn between B and C...helppppp!!!
    6·1 answer
  • Full complete ion name for HO2?​
    11·1 answer
  • How many grams of Fe2O3 will be produced from 37.5 grams of iron
    15·1 answer
  • What is one way humans can control landfills?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!